Opinion 1675 Amphiporus Ehrenberg, 1831 (Nemertea): Planaria lactiflorea Johnston, 1828 designated as the type species

Bulletin of Zoological Nomenclature 49(2) June 1992

157

OPINION 1675

Amphiporus Ehrenberg, 1831 (Nemertea): Planaria lactiflorea Johnston,
1828 designated as the type species

Ruling

(1) Under the plenary powers all previous designations of type species for the
nominal genus Amphiporus Ehrenberg, 1831 are hereby set aside and Planaria
lactiflorea Johnston, 1828 is designated as the type species.

(2) The name Amphiporus Ehrenberg, 1831 (gender: masculine), type species by
designation under the plenary powers in (1) above Planaria lactiflorea Johnston, 1828,
is hereby placed on the Official List of Generic Names in Zoology.

(3) The name lactiflorea Johnston, 1828, as published in the binomen Planaria
lactiflorea (specific name of the type species of Amphiporus Ehrenberg, 1831), is hereby
placed on the Official List of Specific Names in Zoology.

History of Case 2707

An application for the designation of Planaria lactiflorea Johnston, 1828 as the type
species of Amphiporus Ehrenberg, 1831 was received from Prof Ray Gibson (Liverpool
Polytechnic, Liverpool, U.K.) and Dr Frank B. Crandall (Turkey Run Research
Institute, McLean, Virginia, U.S.A.) on 30 January 1989. After correspondence thecase
was published in BZN 48:22-24 (March 1991). Notice of the case was sent to appropri¬
ate journals. No comments were received.

Decision of the Commission

On 1 December 1991 the members of the Commission were invited to vote on the
proposals published in BZN 48: 23. At the close of the voting period on 1 March 1992
the votes were as follows:

Affirmative votes — 28: Bayer, Bock, Bouchet, Cocks, Corliss, Dupuis, Hahn,
Halvorsen, Heppell, Holthuis, Kabata, Kraus, Lehtinen, Macpherson, Mahnert,
Martins de Souza, Minelli, Nielsen, Nye, Ride, Savage, Schuster, Starobogatov, Stys,
Thompson, Trjapitzin, Ueno, Willink
Negative vote — 1: Cogger.

Voting for, Dupuis commented that a specimen figured in McIntosh (1873-1874; see
para. 6 of the application) should be designated the neotype of Planaria lactiflorea
Johnston, 1828. Voting against. Cogger commented that to be effective the proposal
required that the type(s) of lactiflorea are extant and unequivocal and this was not the
case.

Original references

The following are the original references to the names placed on Official Lists by the ruling
given in the present Opinion:

Amphiporus Ehrenberg, 1831, in Hemprich, P.C. & Ehrenberg, C.G. (Eds.), Symbolae Physicae,
seu icones et descriptiones Corporum Naturalium novorum... Pars Zoologica. Animalia
ever tebr ala exclusis insect is, p. 63.
lactiflorea , Planaria , Johnston, 1828, Zoological Journal 3: 489.